New changes about Villagers make the custom trades hard to take place on them

The Bug

I noticed that @ present the single workstation can only be locked by one Villager. But just now I tried to summon my custom-trade Villager, & one who is no-job, & when you try to open his trading UI, which only appears in a flash. After who find the new workstation, the custom trades will be replaced.

To Produce

For example you can go:

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/summon minecraft:villager ~ ~1 ~ {CustomName:"\"鸡你太美\"",VillagerData:{profession:shepherd,level:5},Offers:{Recipes:[{maxUses:114514,buy:{id:"minecraft:emerald",Count:53},sell:{id:"minecraft:netherite_chestplate",Count:1}}]}}

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*U don't have 2 know what does the sentence "鸡你太美" means.

This cmd is used 2 summon a shepherd Villager with master profession lvl, as well as custom trade.

Then U'll see that he is no-job & can't open his trading UI.

Wait 4 a while, after he binding the workstation (Loom), U can see that his profession lvl goes back 2 novice and all trades above is replaced.

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I know I can use Wandering Traders 2 make the trades take place, but I think this may not so funny as B4. U don't wan't Ur DIY villages' Villagers R all Wandering Traders, do U?

If this is a feature, close this as WAI, & tell me how 2 make which take place on Villagers.